Patents by Inventor Nobuhiko Ubahara

Nobuhiko Ubahara has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Semiconductor light emitting element
    Patent number: 9093356
    Abstract: A semiconductor light emitting element comprises a semiconductor laminate including a p-type semiconductor layer, an active layer and an n-type semiconductor layer which are sequentially laminated; and a conductive support substrate joined to the p-type semiconductor layer side of the semiconductor laminate. The semiconductor laminate is divided into at least two semiconductor regions by a trench penetrating the p-type semiconductor layer, the active layer and the n-type semiconductor layer.
    Type: Grant
    Filed: December 23, 2011
    Date of Patent: July 28, 2015
    Assignee: NICHIA CORPORATION
    Inventors: Nobuhiko Ubahara, Kouichiroh Deguchi, Takao Yamada